As a result, protesters were prepared for his visit and gathered in strong opposition of it.

So strong, in fact, that CNN correspondent Miguel Marquez said during the network’s Jake Tapper Tuesday show that he was shocked at how “how big” and “how quickly” the protest grew. You can view the video below.

Also, according to Marquez’ account, there wasn’t just one protest taking place. The one he was at was about a block away from the Tree of Life synagogue, and according to Marquez, seemed to be more of an impromptu protest.

According to CNN, police had tried to clear path for Trump’s motorcade. But Marquez later said the president had “moved off in another direction.”

BuzzFeed reporter Julia Reinstein was also there, capturing images and the overal essence of the protest. Between Marquez’ account and her tweets below, you can get a feel for just how big the protest against Trump’s visit truly was.

Large group gathered for @IfNotNowPGH protest as Trump prepares to arrive in Squirrel Hill.

“He’s fostered an administration of white supremacy and he is not welcome here in our time of mourning,” says one of the organizers, Arielle Cohen. pic.twitter.com/LXPD09KWZI

Giulianna Lamanna is protesting to “honor the eleven people who were lost to hatred, and to send a message to Trump, who has fanned the flames of hate and is partially responsible for this tragedy, and is only making things worse by coming.”

Protestors are setting up food. This is intended not just as a protest, but a public shiva.

“We’re sitting shiva as part of the grieving process for the eleven victims of the mass shooting. We want to respect the Jewish tradition of mourning,” said Mariel Shlomchik. pic.twitter.com/0Gkft9pDos